| Person | Type | Job | Role(s) |
|---|---|---|---|
 Antonio Rinaldi | Crew | Lighting | Gaffer |
Armando Govoni | Crew | Production | Production Secretary |
 Ennio De Concini | Crew | Writing | Screenplay |
Giorgio Giovannini | Crew | Art | Production Design |
Lionello Santi | Crew | Production | Executive Producer |
 Mario Bava | Crew | Directing | Director, Director of Photography, Special Effects, Matte Painter |
Mario Serandrei | Crew | Writing | Screenplay, Editor |
 Massimo De Rita | Crew | Production | Producer |
Nedo Azzini | Crew | Art | Set Decoration |
 Nikolai Gogol | Crew | Writing | Short Story |
Paolo Mercuri | Crew | Production | Unit Manager |
Roberto Nicolosi | Crew | Sound | Original Music Composer |
Tina Grani | Crew | Costume & Make-Up | Costume Design |
Ubaldo Terzano | Crew | Camera | Camera Operator |
Eugenio Bava | Crew | Art | Sculptor |
Vana Caruso | Crew | Directing | First Assistant Director |
Luigi Urbini | Crew | Sound | Conductor |
Bona Magrini | Crew | Directing | Script Supervisor |
 Andrea Checchi | Cast | Actor | Dr. Choma Kruvajan / Dr. Thomas Kruvajan |
 Antonio Pierfederici | Cast | Actor | Priest |
 Arturo Dominici | Cast | Actor | Igor Javutich / Javuto |
 Barbara Steele | Cast | Actress | Princess Asa Vajda / Katia Vajda |
 Clara Bindi | Cast | Inn Keeper | |
Enrico Olivieri | Cast | Actor | Prince Constantine Vajda |
 Germana Dominici | Cast | Actress | Sonya - Innkeeper's Daughter |
 Ivo Garrani | Cast | Actor | Prince Vajda |
 John Richardson | Cast | Actor | Dr. Andrej Gorobec / Dr. Andreas Gorobec |
Mario Passante | Cast | Nikita - Coachman | |
 Nando Gazzolo | Cast | Actor | Narrator (voice) (uncredited) |
 Renato Terra | Cast | Actor | Boris - Stablehand |
 Tino Bianchi | Cast | Actor | Ivan - Manservant |
| Person | Type | Job | Role(s) |
